Remove situations where we're comparing floats with == (Fixes #819)

Author: mvandervoord

examples/example_3/rakefile_helper.rb

@@ -134,7 +134,7 @@ def compile(file, defines = [])
   if $cfg[:tools][:test_compiler][:executable] =~ /gcc/
     $cfg[:tools][:test_compiler][:arguments] |= ['-Wno-misleading-indentation']
   end
-  cmd_str    = build_command_string($cfg[:tools][:test_compiler], [file, out_file], defines)
+  cmd_str = build_command_string($cfg[:tools][:test_compiler], [file, out_file], defines)
   execute(cmd_str)
   out_file
 end

src/unity.c

@@ -445,13 +445,17 @@ void UnityPrintFloat(const UNITY_DOUBLE input_number)
         }
 
         /* round to nearest integer */
-        n = ((UNITY_INT32)(number + number) + 1) / 2;
+        {
+            UNITY_DOUBLE two_number = number + number;
+            UNITY_INT32  two_n_trunc = (UNITY_INT32)two_number;
+            n = (two_n_trunc + 1) / 2;
 
 #ifndef UNITY_ROUND_TIES_AWAY_FROM_ZERO
-        /* round to even if exactly between two integers */
-        if ((n & 1) && (UNITY_ABS((UNITY_DOUBLE)n - number - 0.5f) < epsilon))
-            n--;
+            /* round to even if exactly between two integers */
+            if ((n & 1) && (two_n_trunc & 1) && !((UNITY_DOUBLE)two_n_trunc < two_number))
+                n--;
 #endif
+        }
 
         n += n_int;